Don't over complicate a routine, for mass stick to heavy, compound movements, 6-8 reps. Forget all those pussy isolation movements. Quit the cardio (unless you feel you need to do it). Change up the excercises, the order you do them and the days you do them. If you aren't already doing negatives you should start, they may look innefective but do wonders if performed right.
Git'r'dun